All Balls A-Arm Bearing Kit 50-1037 A-Arm Bearing kits contain all bearings, seals, shafts and misc. components to repair A-Arm bearing failure. Upgrade rubber bushings found in Utility ATV A-Arms to ABs redesigned HD Delrin bushings. This kit is designed to replace worn out rubber bushings and provides greater suspension travel and performance. Each kit contains the necessary bushings, hardened pins and seals to assure long component life. Kits are sold per A-Arm.